extremely rude customer service attendee

I phoned vodacom on the 05/09/2019 after I received smses that my line will be cut for an arrears of R175.00. I stipulated to the lady that assisted me that every month the account is different and that I will be paying the arrear at the end of September 2019. Today I find that my line is cut, I phone in. The lady I speak with is extremely rude. tells me that on the 05/09/2019 I rep**** on my *** number stipulating that I will be paying on the 09/09/2019 I tell her she has to send me proof I have never sent the sms, I phoned in. She keeps on saying I smsed and made the arrangement and there is no record of the phone call I ask her now whose problem or negligence is it that there is no record of the phone call. Our calls are recorded and I can provide proof that I phoned in during september and that I made an arrangement. She then says ITS MY PROBLEM because I sent the sms I tell her I have NEVER sent a SMS she refuses to give me her name. I have been a loyal customer for 5 years and Vodacom Customer Service Collections treats me like **** who does not pay her account! I am totally over this. They never make notes of calls and allege that I am lying! I will not leave this here your employees are extremely rude.